Sharpening

The level of sharpening could be set in
camera, or later,
corrected by a program. Here are some examples of computer sharpening of picture
at different ratios with Photopaint at 10, 20, 50 and 100 steps. At this point is good to know that
sensor always gets the same
sharpen value and considers it at conversion to JPEG or TIFF. If this fact is
considered, the best way is to set sharpness in camera to 'soft' and correct it
later to desired value. By sharpening some artifacts appear; most visible is white-black
echo, which is mostly amplified sharpening artifact made in camera. If you take
a better look at magnified pictures available by clicking on buttons on the left
side, the echo is not visible any more because the picture was taken at
'soft'.